9974989 has 4 divisors (see below), whose sum is σ = 9988924. Its totient is φ = 9961056.

The previous prime is 9974983. The next prime is 9975029. The reversal of 9974989 is 9894799.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6300100 + 3674889 = 2510^2 + 1917^2 .

It is a cyclic number.

It is not a de Polignac number, because 9974989 - 2⁵ = 9974957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9974983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5832 + ... + 7345.

It is an arithmetic number, because the mean of its divisors is an integer number (2497231).

Almost surely, 2^9974989 is an apocalyptic number.

It is an amenable number.

9974989 is a deficient number, since it is larger than the sum of its proper divisors (13935).

9974989 is a wasteful number, since it uses less digits than its factorization.

9974989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13934.

The product of its digits is 1469664, while the sum is 55.

The square root of 9974989 is about 3158.3205980394. The cubic root of 9974989 is about 215.2637038295.

The spelling of 9974989 in words is "nine million, nine hundred seventy-four thousand, nine hundred eighty-nine".